کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1548572 997746 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fine mapping and cloning of MT1, a novel allele of D10
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Fine mapping and cloning of MT1, a novel allele of D10
چکیده انگلیسی

Rice tillering is an important determinant for grain production. To investigate the mechanism of tillering, we characterized a multiple tillering mutant (mt1) identified from the japonica variety, Zhonghua 11, treated with EMS. This mutant exhibits advanced tillering development and dwarfed compared with wild-type plants. Genetic analysis and fine gene mapping indicated that the mt1 mutant was controlled by a recessive gene, residing on a 29-kb window on AP003376 of chromosome 1. One putative gene in this region, encoding a carotenoid cleavage dioxygenase 8 (CCD8), was allelic to D10. The mt1 mutant phenotype was complemented by introduction of wild-type MT1, and knockdown of MT1 in wild-type rice mimicked the mutant phenotype. Real-time PCR analysis indicated that the MT1 gene is expressed highly in stems and at a low level in axillary buds, panicles, leaves, and roots. In addition, MT1 expression is clearly under feedback regulation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Natural Science - Volume 19, Issue 12, 10 December 2009, Pages 1683–1689
نویسندگان
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